<doc>
   <city name="Paris"
         country="France"/>
   <city name="Madrid"
         country="Spain"/>
   <city name="Vienna"
         country="Austria"/>
   <city name="Barcelona"
         country="Spain"/>
   <city name="Salzburg"
         country="Austria"/>
   <city name="Bonn"
         country="Germany"/>
   <city name="Lyon"
         country="France"/>
   <city name="Hannover"
         country="Germany"/>
   <city name="Calais"
         country="France"/>
   <city name="Berlin"
         country="Germany"/>
</doc>